Carolina Algae Control


	Water Municipalities Benefits of Ultrasound Algae Control in a Water Treatment Facility Excessive algae in raw water supplies drive up water treatment costs by: 1. Reducing filter run times, thus requiring frequent backwashes. With an LG Sonic producing ultrasound waves in the water, you eliminate algae from your sedimentation basin walls and reduce it among the wiers. Filter clogging will be significantly reduced and the number of backwashes needed will be reduced. 2. Increasing chemical costs for taste and odor control With millions of gallons a day flow rate through a water system, the residence time is usually not long enough for the ultrasound to be effective in eliminating algae during this stage. We do recommend, if at all possible, to treat the "point source" of the water prior to it reaching the plant. For example: by installing LG Sonic units in a city or rural reservoir - the incoming water would be free of algae, thus reducing or eliminating the taste and odor issues normally present. 3. Increasing oxidant dose requirements for disinfection in conjunction with new and more strict THM regulations states are requiring. THM is trihalomethane, is a by-product of chlorine disinfection of water. To disinfect the water from bacteria, a plant also has to add enough chlorine to take care of the algae. You add enough chlorine to maintain a free chlorine residual so that any surges in the bacterial count will be taken care of. You control the water by monitoring the free residual chlorine. When you implement the LG Sonic application, much less chlorine is needed to assure the free residual chlorine because the LG Sonic unit will take care of most of the algae load for you. This means that with less chlorine having to be added, the THM levels should be much less. So not only will it help you reduce your chlorine costs, it will also help you reduce the THM level in your water.